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I'm not really sure on this one...

Am i correct?

A maglev train requires which of the following?

A. track and the train must have the different magnetic poles

B. track and the train must have the same magnetic poles <---

C. magnetic poles must alternate between the track and train at nearly the speed of light

D. a bolt of electricity must move between the track and train

2 answers

Seems to me they better repel each other so I agree with you.
okay great, thx
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